Method and apparatus for sampling rods and wires



Oct. 19, 1937. R. COLEMAN METHOD. AND APPARATUS FOR SAMPLING RODS AND WIRES Filed Aug. 26, 1936 go to possible.

55 29 secured therein by a screw 30. Various sizes same plane. 55

NITED PATENT ()FFICE 'METHOD AND APPARATUS FOR SAMPLING RODS AND WIRES Ralph Coleman, Lorain, Ohio, assignor to National Tube Company, a corporation of New Jersey Application August 26, 1936, Serial No. 98,033

5 Claims. (01. 90-11) This invention relates to a method and appaof bushings 23 and 29 may be provided to acratus for procuring sample chips from specimens commodate various sizes of rods or wires. such as, for example, rods and wires. The base member I is also provided with a Prior to my invention sample chips for analcover member 3| having a slot 32 to provide a ysis were obtained by gripping the wire or rod in guideway for the feed block 25. This cover 3| 6 a lathe and turning'chips from the periphery of is removably secured to the base ID by thumbthe wire or rod. However, this method was not screws 33 or other suitable means. only slow and consequently costly but also un- Secured in the arbor of the milling machine satisfactory in that in many instances sample are two or more circular saw blades 34 having 0 chips from the entire cross-section could not be their teeth 35 in staggered relation. The numobtained. The present invention seeks to overber of circular saws 34 may be varied according come these disadvantages. Better sample chips to the diameter of the specimen from which it is can be obtained in that they are taken from the desired to obtain sample chips.

entire cross-section and a considerable saving A length of wire' or rod 35 from which it is 5 both in time and expense is made possible by its desired to obtain sample chips is inserted in the use. bushing 23 and the guide block 25 is moved to the One of the objects of the present invention is desired position, depending upon the length of the procuring of suitable sample chips from an the wire or rod 35, and the opposite end of the entire cross-section at a. rate of speed not hitherwire or rod is placed therein and secured by the l screw 30. The milling machine table is adjusted The foregoing and. other objects will be apso that the center line of the wire or rod 35 is in I parent after referring to the drawing, in which: the same plane as the center line of the arbor Figure l is a top plan View of a preferred emand the longitudinal axis of the wire is at a bodiment of my device for procuring sample right angle to the axis of rotation of the saw chips from aspecimen. arbor. Then the base [0 is moved to bring the 25 Figure 2 is a longitudinal View of same, partly end of the bushing 23 approximately inch in section. from the periphery of the saws 34. The speed of Figure 3 is an end elevation. the rotation of the saws is then regulated ac- Figure 4 is a sectional view on the line IVIV cording to the carbon content of the steel in of Figure 2. order that the chips may not be burned by the 30 Referring more particularly to' the drawing, the cutting operation. The speed at which the samnumeral 10 designates a U-shaped base of a depie is fed to the saws by the crank 2| is governed vice to be attached, to the table of a standard by the grade of steel of the wire or rod and the milling machine (not shown). by clamps or other quality of the chips desired.

suitable means. The base ID has closed ends [2 While I have shown and described a specific 35 and 13 which areprovided with alined openings embodiment of my invention, it will be under- H and [5 respectively. A screw-threaded shaft stood that I do not wish to be limited exactly I6 is journaled in the alined openings l4 and I5 thereto, since various modifications may be made of the base It! by a pin 16 and collar- I1. This without departing from the scope of my invenshaft I6 extends through the end l3 of the base tion, as defined by the following claims. 40

Ill and is provided with a collar I8, which is se- I claim:

I cured thereto by a pin l9. This end of the 1. A method of procuring sample chips from a shaft I6 is also provided with a thumb-screw 20. specimen comprising obtaining a specimen and Secured to the thumb-screw 20 is a crank handle feeding said specimen endwise against a saw, the

2|. A guide member 22 is suitably secured to the longitudinal axis of said specimen being at sub- 45 end l2 of the base l0, and is provided with an stantially a right angle to the axis of rotation opening 22 having a bushing '23 secured therein of said saw. by a screw 24. A feed block 25 is provided with 2. A method of procuring sample chips from a semiecylindrical screw-threaded recess 26 for a specimen comprising obtaining a specimen and 0 engagement with the screw-threaded shaft I6 and feeding said specimen endwise against the teeth a slot 21 in the side thereof'cooperates with cover of a saw, the longitudinal axis of said specimen plate 3| to hold the feed block 25 inengagement being at substantially a right angle to the axis with'the shaft It. The feed block 25 has an of rotation of said saw, said axis and the axis opening 28 in its upper end which has a bushing of rotation of the saw being in substantially the 4. An apparatus for procuring sample chips.

from a specimen comprising a saw, said saw consisting of at least two circular saws placed together, the teeth of said saws being staggered,

and means for feeding a specimen endwise against the teeth of said saw.

5. In combination with a milling machine, an attachment for procuring sample chips from a specimen comprising a saw, said saw consisting of at least two circular saws placed together, the teeth of said saws beingstaggeredand means for feeding a specimen endwise against the teeth of said saw.

RALPH COLEMAN. 

